JBrowser/match
From Joomla! Documentation
< API15:JBrowser
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The "API15" namespace is an archived namespace. This page contains information for a Joomla! version which is no longer supported. It exists only as a historical reference, it will not be improved and its content may be incomplete and/or contain broken links.
Description[edit]
Parses the user agent string and inititializes the object with all the known features and quirks for the given browser.
<! removed transcluded page call, red link never existed >
Syntax[edit]
match($userAgent=null, $accept=null)| Parameter Name | Default Value | Description |
|---|---|---|
| $userAgent | null | $userAgent The browser string to parse. |
| $accept | null | $accept The HTTP_ACCEPT settings to use. |
Defined in[edit]
libraries/joomla/environment/browser.php
Importing[edit]
jimport( 'joomla.environment.browser' );Source Body[edit]
function match($userAgent = null, $accept = null)
{
// Set our agent string.
if (is_null($userAgent)) {
if (isset($_SERVER['HTTP_USER_AGENT'])) {
$this->_agent = trim($_SERVER['HTTP_USER_AGENT']);
}
} else {
$this->_agent = $userAgent;
}
$this->_lowerAgent = strtolower($this->_agent);
// Set our accept string.
if (is_null($accept)) {
if (isset($_SERVER['HTTP_ACCEPT'])) {
$this->_accept = strtolower(trim($_SERVER['HTTP_ACCEPT']));
}
} else {
$this->_accept = strtolower($accept);
}
// Check if browser excepts content type xhtml+xml
if (strpos($this->_accept, 'application/xhtml+xml')) {
$this->setFeature('xhtml+xml');
}
// Check for a mathplayer plugin is installed, so we can use MathML on several browsers
if (strpos($this->_lowerAgent, 'mathplayer') !== false) {
$this->setFeature('mathml');
}
// Check for UTF support.
if (isset($_SERVER['HTTP_ACCEPT_CHARSET'])) {
$this->setFeature('utf', strpos(strtolower($_SERVER['HTTP_ACCEPT_CHARSET']), 'utf') !== false);
}
if (!empty($this->_agent)) {
$this->_setPlatform();
if (strpos($this->_lowerAgent, 'mobileexplorer') !== false ||
strpos($this->_lowerAgent, 'openwave') !== false ||
strpos($this->_lowerAgent, 'opera mini') !== false ||
strpos($this->_lowerAgent, 'operamini') !== false) {
$this->setFeature('frames', false);
$this->setFeature('javascript', false);
$this->setQuirk('avoid_popup_windows');
$this->_mobile = true;
} elseif (preg_match('|Opera[/ ]([0-9.]+)|', $this->_agent, $version)) {
$this->setBrowser('opera');
list($this->_majorVersion, $this->_minorVersion) = explode('.', $version[1]);
$this->setFeature('javascript', true);
$this->setQuirk('no_filename_spaces');
if ($this->_majorVersion >= 7) {
$this->setFeature('dom');
$this->setFeature('iframes');
$this->setFeature('accesskey');
$this->setFeature('optgroup');
$this->setQuirk('double_linebreak_textarea');
}
} elseif (strpos($this->_lowerAgent, 'elaine/') !== false ||
strpos($this->_lowerAgent, 'palmsource') !== false ||
strpos($this->_lowerAgent, 'digital paths') !== false) {
$this->setBrowser('palm');
$this->setFeature('images', false);
$this->setFeature('frames', false);
$this->setFeature('javascript', false);
$this->setQuirk('avoid_popup_windows');
$this->_mobile = true;
} elseif ((preg_match('|MSIE ([0-9.]+)|', $this->_agent, $version)) ||
(preg_match('|Internet Explorer/([0-9.]+)|', $this->_agent, $version))) {
$this->setBrowser('msie');
$this->setQuirk('cache_ssl_downloads');
$this->setQuirk('cache_same_url');
$this->setQuirk('break_disposition_filename');
if (strpos($version[1], '.') !== false) {
list($this->_majorVersion, $this->_minorVersion) = explode('.', $version[1]);
} else {
$this->_majorVersion = $version[1];
$this->_minorVersion = 0;
}
/* IE (< 7) on Windows does not support alpha transparency in
* PNG images. */
if (($this->_majorVersion < 7) &&
preg_match('/windows/i', $this->_agent)) {
$this->setQuirk('png_transparency');
}
/* Some Handhelds have their screen resolution in the
* user agent string, which we can use to look for
* mobile agents. */
if (preg_match('/; (120x160|240x280|240x320|320x320)\)/', $this->_agent)) {
$this->_mobile = true;
}
switch ($this->_majorVersion) {
case 7:
$this->setFeature('javascript', 1.4);
$this->setFeature('dom');
$this->setFeature('iframes');
$this->setFeature('utf');
$this->setFeature('rte');
$this->setFeature('homepage');
$this->setFeature('accesskey');
$this->setFeature('optgroup');
$this->setFeature('xmlhttpreq');
$this->setQuirk('scrollbar_in_way');
break;
case 6:
$this->setFeature('javascript', 1.4);
$this->setFeature('dom');
$this->setFeature('iframes');
$this->setFeature('utf');
$this->setFeature('rte');
$this->setFeature('homepage');
$this->setFeature('accesskey');
$this->setFeature('optgroup');
$this->setFeature('xmlhttpreq');
$this->setQuirk('scrollbar_in_way');
$this->setQuirk('broken_multipart_form');
$this->setQuirk('windowed_controls');
break;
case 5:
if ($this->getPlatform() == 'mac') {
$this->setFeature('javascript', 1.2);
$this->setFeature('optgroup');
} else {
// MSIE 5 for Windows.
$this->setFeature('javascript', 1.4);
$this->setFeature('dom');
$this->setFeature('xmlhttpreq');
if ($this->_minorVersion >= 5) {
$this->setFeature('rte');
$this->setQuirk('windowed_controls');
}
}
$this->setFeature('iframes');
$this->setFeature('utf');
$this->setFeature('homepage');
$this->setFeature('accesskey');
if ($this->_minorVersion == 5) {
$this->setQuirk('break_disposition_header');
$this->setQuirk('broken_multipart_form');
}
break;
case 4:
$this->setFeature('javascript', 1.2);
$this->setFeature('accesskey');
if ($this->_minorVersion > 0) {
$this->setFeature('utf');
}
break;
case 3:
$this->setFeature('javascript', 1.5);
$this->setQuirk('avoid_popup_windows');
break;
}
} elseif (preg_match('|amaya/([0-9.]+)|', $this->_agent, $version)) {
$this->setBrowser('amaya');
$this->_majorVersion = $version[1];
if (isset($version[2])) {
$this->_minorVersion = $version[2];
}
if ($this->_majorVersion > 1) {
$this->setFeature('mathml');
$this->setFeature('svg');
}
$this->setFeature('xhtml+xml');
} elseif (preg_match('|W3C_Validator/([0-9.]+)|', $this->_agent, $version)) {
$this->setFeature('mathml');
$this->setFeature('svg');
$this->setFeature('xhtml+xml');
} elseif (preg_match('|ANTFresco/([0-9]+)|', $this->_agent, $version)) {
$this->setBrowser('fresco');
$this->setFeature('javascript', 1.5);
$this->setQuirk('avoid_popup_windows');
} elseif (strpos($this->_lowerAgent, 'avantgo') !== false) {
$this->setBrowser('avantgo');
$this->_mobile = true;
} elseif (preg_match('|Konqueror/([0-9]+)|', $this->_agent, $version) ||
preg_match('|Safari/([0-9]+)\.?([0-9]+)?|', $this->_agent, $version)) {
// Konqueror and Apple's Safari both use the KHTML
// rendering engine.
$this->setBrowser('konqueror');
$this->setQuirk('empty_file_input_value');
$this->setQuirk('no_hidden_overflow_tables');
$this->_majorVersion = $version[1];
if (isset($version[2])) {
$this->_minorVersion = $version[2];
}
if (strpos($this->_agent, 'Safari') !== false &&
$this->_majorVersion >= 60) {
// Safari.
$this->setFeature('utf');
$this->setFeature('javascript', 1.4);
$this->setFeature('dom');
$this->setFeature('iframes');
if ($this->_majorVersion > 125 ||
($this->_majorVersion == 125 &&
$this->_minorVersion >= 1)) {
$this->setFeature('accesskey');
$this->setFeature('xmlhttpreq');
}
if ($this->_majorVersion > 522) {
$this->setFeature('svg');
$this->setFeature('xhtml+xml');
}
} else {
// Konqueror.
$this->setFeature('javascript', 1.5);
switch ($this->_majorVersion) {
case 3:
$this->setFeature('dom');
$this->setFeature('iframes');
$this->setFeature('xhtml+xml');
break;
}
}
} elseif (preg_match('|Mozilla/([0-9.]+)|', $this->_agent, $version)) {
$this->setBrowser('mozilla');
$this->setQuirk('must_cache_forms');
list($this->_majorVersion, $this->_minorVersion) = explode('.', $version[1]);
switch ($this->_majorVersion) {
case 5:
if ($this->getPlatform() == 'win') {
$this->setQuirk('break_disposition_filename');
}
$this->setFeature('javascript', 1.4);
$this->setFeature('dom');
$this->setFeature('accesskey');
$this->setFeature('optgroup');
$this->setFeature('xmlhttpreq');
$this->setFeature('cite');
if (preg_match('|rv:(.*)\)|', $this->_agent, $revision)) {
if ($revision[1] >= 1) {
$this->setFeature('iframes');
}
if ($revision[1] >= 1.3) {
$this->setFeature('rte');
}
if ($revision[1] >= 1.5) {
$this->setFeature('svg');
$this->setFeature('mathml');
$this->setFeature('xhtml+xml');
}
}
break;
case 4:
$this->setFeature('javascript', 1.3);
$this->setQuirk('buggy_compression');
break;
case 3:
default:
$this->setFeature('javascript', 1);
$this->setQuirk('buggy_compression');
break;
}
} elseif (preg_match('|Lynx/([0-9]+)|', $this->_agent, $version)) {
$this->setBrowser('lynx');
$this->setFeature('images', false);
$this->setFeature('frames', false);
$this->setFeature('javascript', false);
$this->setQuirk('avoid_popup_windows');
} elseif (preg_match('|Links \(([0-9]+)|', $this->_agent, $version)) {
$this->setBrowser('links');
$this->setFeature('images', false);
$this->setFeature('frames', false);
$this->setFeature('javascript', false);
$this->setQuirk('avoid_popup_windows');
} elseif (preg_match('|HotJava/([0-9]+)|', $this->_agent, $version)) {
$this->setBrowser('hotjava');
$this->setFeature('javascript', false);
} elseif (strpos($this->_agent, 'UP/') !== false ||
strpos($this->_agent, 'UP.B') !== false ||
strpos($this->_agent, 'UP.L') !== false) {
$this->setBrowser('up');
$this->setFeature('html', false);
$this->setFeature('javascript', false);
$this->setFeature('hdml');
$this->setFeature('wml');
if (strpos($this->_agent, 'GUI') !== false &&
strpos($this->_agent, 'UP.Link') !== false) {
/* The device accepts Openwave GUI extensions for
* WML 1.3. Non-UP.Link gateways sometimes have
* problems, so exclude them. */
$this->setQuirk('ow_gui_1.3');
}
$this->_mobile = true;
} elseif (strpos($this->_agent, 'Xiino/') !== false) {
$this->setBrowser('xiino');
$this->setFeature('hdml');
$this->setFeature('wml');
$this->_mobile = true;
} elseif (strpos($this->_agent, 'Palmscape/') !== false) {
$this->setBrowser('palmscape');
$this->setFeature('javascript', false);
$this->setFeature('hdml');
$this->setFeature('wml');
$this->_mobile = true;
} elseif (strpos($this->_agent, 'Nokia') !== false) {
$this->setBrowser('nokia');
$this->setFeature('html', false);
$this->setFeature('wml');
$this->setFeature('xhtml');
$this->_mobile = true;
} elseif (strpos($this->_agent, 'Ericsson') !== false) {
$this->setBrowser('ericsson');
$this->setFeature('html', false);
$this->setFeature('wml');
$this->_mobile = true;
} elseif (strpos($this->_lowerAgent, 'wap') !== false) {
$this->setBrowser('wap');
$this->setFeature('html', false);
$this->setFeature('javascript', false);
$this->setFeature('hdml');
$this->setFeature('wml');
$this->_mobile = true;
} elseif (strpos($this->_lowerAgent, 'docomo') !== false ||
strpos($this->_lowerAgent, 'portalmmm') !== false) {
$this->setBrowser('imode');
$this->setFeature('images', false);
$this->_mobile = true;
} elseif (strpos($this->_agent, 'BlackBerry') !== false) {
$this->setBrowser('blackberry');
$this->setFeature('html', false);
$this->setFeature('javascript', false);
$this->setFeature('hdml');
$this->setFeature('wml');
$this->_mobile = true;
} elseif (strpos($this->_agent, 'MOT-') !== false) {
$this->setBrowser('motorola');
$this->setFeature('html', false);
$this->setFeature('javascript', false);
$this->setFeature('hdml');
$this->setFeature('wml');
$this->_mobile = true;
} elseif (strpos($this->_lowerAgent, 'j-') !== false) {
$this->setBrowser('mml');
$this->_mobile = true;
}
}
}
<! removed transcluded page call, red link never existed >
Examples[edit]
Code Examples[edit]